公开(公告)号：JP2001298387A

公开(公告)日：2001-10-26

申请号：JP2001065899

申请日：2001-03-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HASSIBI BABAK ,  HOCHWALD BERTRAND M ,  SHOKROLLAHI MOHAMMAD AMIN ,  SWELDENS WIM

IPC: H04B7/08 ,  H04L1/06

Abstract: PROBLEM TO BE SOLVED: To provide an approach on the basis of a principle to a spatiotemporal signal constellation design that can further sufficiently accomplish a logical advantage of a high data rate and a low error probability. SOLUTION: This method is provided for a radio signal transmission of a signal from two or more antenna arrays where each signal to be transmitted is selected from a constellation of unitary spatiotemporal signals. Each signal is a unitary matrix in which each column shows its own antenna, each row shows its own time interval, and each element shows complex amplitude transmitted by a prescribed antenna in a prescribed time interval. In a specified performance form, a signal constellation matrix forms a non abelian group having a positive diversity product or the remainder or the like of such a group. In another performance from, a signal constellation is a subset of such a group, and its multiplication closure forms a finite non abelian group having a positive diversity product.

公开(公告)号：DE60001804T2

公开(公告)日：2003-12-11

申请号：DE60001804

申请日：2000-11-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HASSIBI BABAK ,  HOCHWALD BERTRAND M ,  SHOKROLLAHI MOHAMMAD AMIN ,  SWELDENS WIM

IPC: H04B7/08 ,  H04L1/06

Abstract: Disclosed is a method for wireless signal transmission of signals from an array of two or more antennas, in which each signal to be transmitted is selected from a constellation of unitary space-time signals. Each unitary space-time signal is a unitary matrix, in which each column represents a respective antenna, each row represents a respective time interval, and each element represents a complex amplitude to be transmitted by a given antenna during a given time interval. In specific embodiments of the invention, the matrices of the signal constellation form a non-Abelian group which has a positive diversity product, or a set derived from such a group. In other embodiments, the signal constellation is a subset of such a group, and its multiplicative closure forms a finite non-Abelian group which has a positive diversity product. In still other embodiments, the signal constellation is an extension of any of the preceding types of constellations, formed by adding one or more further elements that do not belong to, and are not derived from, the group or group subset.

公开(公告)号：DE60001804D1

公开(公告)日：2003-04-30

申请号：DE60001804

申请日：2000-11-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HASSIBI BABAK ,  HOCHWALD BERTRAND M ,  SHOKROLLAHI MOHAMMAD AMIN ,  SWELDENS WIM

IPC: H04B7/08 ,  H04L1/06

Abstract: Disclosed is a method for wireless signal transmission of signals from an array of two or more antennas, in which each signal to be transmitted is selected from a constellation of unitary space-time signals. Each unitary space-time signal is a unitary matrix, in which each column represents a respective antenna, each row represents a respective time interval, and each element represents a complex amplitude to be transmitted by a given antenna during a given time interval. In specific embodiments of the invention, the matrices of the signal constellation form a non-Abelian group which has a positive diversity product, or a set derived from such a group. In other embodiments, the signal constellation is a subset of such a group, and its multiplicative closure forms a finite non-Abelian group which has a positive diversity product. In still other embodiments, the signal constellation is an extension of any of the preceding types of constellations, formed by adding one or more further elements that do not belong to, and are not derived from, the group or group subset.